Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why do we have another cartridge filled with oil fitted at the bottom silica gel cartridge in power transforers

1 2814

why transformer rating is mentioned in kva?

JK Electric Works,

1 3933

what is the formulae of calculating voltage drop?

2 3943

High Voltage out door substation-annual maintenance, things to be considered

1 3395

How much current can a 3-1/2 core 100 mm wire carry?

Epitome, Focus, Focus Energy,

3 31798

1 hp single phase motor is more likely to get hot thsn inone hp 3 phase motor its true or false? If true why?

Focus, Focus Energy,

3 23538

Whis machine is having higher efficiency Transformer or Generator

2 3832

What is the latest generation of circuit breakers called?

Epitome, Focus Energy, Jakson, KDC, L&T,

3 22341

What are the special cables required for explosion proof wiring?

IVRCL,

2 15751

What is the similarity and what is the difference between relays and PLC?

NTPC,

3 27222

The company is wiling to buy you 5 pcs of equipments in your electrical tool kit. Plz tell what are the 5 things you want?

3 23913

Suppose an electric motor with a controller is not working. What is the sequence of testing you will do in your troubleshooting?

Emerson,

2 23698

how the BDV of the oil will be checked using moterised controled HV SET?

1 2967

What is an Isolation Transformer? Where it will use?

3 4389

What is the latest generation of circuit breakers called?

Focus, OPTCL,

1 5248


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Un-Answered Questions { Electrical Engineering }

What is shunt voltage and u v voltage witch one best

1328


what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

1596


Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

1287


how do i commission a distribution transformer knowing all its ratings and transformation ratios?d

3955


ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

1617






How to calculate no of EARTH PIT? Describe the formula as per IS standard?

3229


Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

1535


if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

1632


How do I calculate/select Droop CT ratio for various capacity of generators?

3135


what is gas turbine intercooling ?

1638


why u r living from presentaly working.

2011


What is the instrument to check the rotating diode fuse of alternator in running conditions?

2053


what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

1135


define digital electronic

1622


In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1549